LMS202ECM National Semiconductor, LMS202ECM Datasheet

LMS202ECM

Manufacturer Part Number

LMS202ECM

Description

Manufacturer

National Semiconductor

Datasheet

1.LMS202ECM.pdf (8 pages)

Specifications of LMS202ECM

Data Rate

230Kbps

Interface Circuit Standard 1

EIA/TIA-232/RS-232

Number Of Receivers

Number Of Transmitters

Number Of Transceivers

Data Transmission Topology

Point-to-Point

Receiver Signal Type

Single-Ended

Transmitter Signal Type

Single-Ended

Single Supply Voltage (typ)

Single Supply Voltage (min)

4.5V

Single Supply Voltage (max)

5.5V

Dual Supply Voltage (typ)

Not RequiredV

Dual Supply Voltage (min)

Not RequiredV

Dual Supply Voltage (max)

Not RequiredV

Supply Current

7mA

Power Supply Requirement

Single

Operating Temp Range

0C to 70C

Operating Temperature Classification

Commercial

Mounting

Surface Mount

Pin Count

Package Type

SOIC N

Lead Free Status / Rohs Status

Not Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LMS202ECM

Manufacturer:

Quantity:

617

Company:

H&T Electronics

Part Number:

LMS202ECM

Quantity:

Company:

Meier Automation Equipment Co., Limited

Part Number:

LMS202ECMW

Manufacturer:

NS/国半

Quantity:

20 000

Current page: 1 of 8
Download datasheet (139Kb)

LMS202E

15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual

Transceivers

General Description

The LMS202E features two transmitters and two receivers

for RS-232 communication. It has a DC-to-DC converter that

permits the device to operate with only a single +5V power

supply. The on-chip DC-to-DC converter which utilizes four

external 0.1µF capacitors to generate dual internal power

supplies for RS-232 compatible output levels.

The device meet EIA/TIA-232E and CCITT V.28 specifica-

tions up to 230kbits/sec. The LMS202E is available in a 16

pin narrow and wide SOIC package.

The transmitter outputs and receiver inputs have

electrostatic discharge (ESD) protection. The LMS202E sur-

vives a

pins when subjected according to Human Body Model or IEC

1000-4-2 (EN61000-4-2),air-gap specification. It survives a

4-2), contact specification. This device is designed for use in

harsh environments where ESD is a concern.

Connection Diagram and Typical Circuit

8kV discharge when subjected to IEC 1000-4-2 (EN61000-

15kV ESD event to the RS-232 input and output

DS200480

15kV

Features

n ESD protection for RS-232 I/O pins

n Single +5V power supply

n 230 kbps data rate

n On-board DC-to-DC converter

n 0.1µF charge pump capacitors

n Drop-in replacement to Maxim’s MAX202E

Applications

n POS equipment (Bar code reader)

n Hand-held equipment

n General purpose RS-232 communication

—

Discharge

15kV-IEC1000 4-2 (EN61000-4-2) Contact

8kV-IEC1000 4-2 (EN61000-4-2) Air-Gap Discharge

15kV Human Body Model

20048001

www.national.com

March 2003

Related parts for LMS202ECM

LMS202ECM Summary of contents

Page 1

... IEC 1000-4-2 (EN61000- 4-2), contact specification. This device is designed for use in harsh environments where ESD is a concern. Connection Diagram and Typical Circuit © 2003 National Semiconductor Corporation Features n ESD protection for RS-232 I/O pins ± — ...

Page 2

... LMS202ECMW LMS202ECMWX 16-Pin Wide SOIC LMS202EIMW LMS202EIMWX www.national.com ± 10%) Package Marking Transport Media 48 Units/Rail LMS202ECM 2.5k Units Tape and Reel 48 Units/Rail LMS202EIM 2.5k Units Tape and Reel 45 Units/Rail LMS202ECMW 1.0k Units Tape and Reel 45 Units/Rail LMS202EIMW 1.0k Units Tape and Reel ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications V− Driver Input Voltage Receiver Input Voltage Driver Output Voltage T (V− −0.3V to (V+ + 0.3V) O Receiver Output Voltage R O Short Circuit Duration, T ...

Page 4

Electrical Characteristics Over recommended operating supply and temperature ranges unless otherwise specified Cbp = 0.1µF Symbol Parameter T Receiver Propagation Delay C RPLH T RPHL T Transmitter Propagation DPLH T Delay DPHL ...

Page 5

Typical Characteristics Transmitter Output High Voltage vs. Load Capacitance Application Information CAPACITOR SELECTION The recommended capacitors are 0.1µF. However, larger capacitors for the charge pump may be used to minimized ripples on V+ and V− pins. POWER SUPPLY DECOUPLING In ...

Page 6

Application Information MACHINE MODEL The Machine Model is the standard ESD test method in Japan and the automotive industry. It simulates a charge on large object discharging through the IC device. This takes place in automated test and handling systems. ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 16-Pin SOIC NS Package Number M16A 16-Pin Wide SOIC NS Package Number M16B 7 www.national.com ...

Page 8

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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